Tube frame for axminster looms



March 1932. w. H. WAKEFIELD TUBE FRAME FOR AXMINSTER LOOMS Filed Feb. 5, 1930 [v VEN TOE WAL TEE H WAKEF/EL 0 Patented Mar. 1, 1932 UNITED STATES WALTER H. WAKEFIELD, 0F WORCESTER, MASSACHUSETTS,'ASSIGNOR TO CROMPTOIT & KNOWLES LOOM wonxs, or

MASSACHUSETTS WORCESTER, MASSACHUSETTS, A CORPORATION OF TUBE FRAME .ron ,AXMIN'ST'ER LOOMS Application fil ed February 5, 1930. Serial No. 426,116. y

This invention relates to improvements in tube frames for Axminster looms and it 1s the general object of the invention to provide i w ll appear as'the descriptionproceeds, my

the tube frame having a sliding chain engaging bracket which shall have large and substantial sliding engagement with the tube frame bar.

In Axminster tube frames for, wide fabrics it has been customary heretofore to provide a tubular carrier bar substantially rectangular in cross section into which are inserted a pair of arms projecting from a chain engaging and spool supporting bracket. As

ordinarily constructed these brackets have an 7 outside chain engaging member which extends across the end of the bar to the lower end thereof, thus closing the end of the bar.

In the forms of sliding hooks heretofore proposed it has been necessary, when inserting the plunger part of the hook within the bar, to pass it through this outer member of the bracket, thereby weakening either the memober or the hook. It is an important object of my present invention to secure the outer member of the bracket to the upper side of the bar so that the same may remain substantially full width and not be slotted or otherwise weakened, the hook having a sliding portion to lie between said arm of the member and the bottom of the bar.

It is another object of my present invention to provide spool supporting and'chain-engagi ing members of a'bracket with parallel engaging arms projected into the bar and secured to one inner face thereof and mount a sliding guide on the hook which shallextend between said pair of arms and the opposite side of'the bar. i v V In the constructions described heretofore it is desirable'to attach the bracket to the lower as well as the upper wall, andit is a further object of my invention to bend the horizontal "arm of the chain engaging member downwardly across the hollow bore of the tube and secure. the same to the lower face of the carrier bar at a point beyond the hook guide, thereby providing support for the bracket and also affording a means for confining the compression spring which norset forth, v I

Fig. 1 is an end elevationof a tube frame mally urges the hook towardtubeframe supporting position. i p

iVith these and other objects in view which invention residesin the combination and arrangement of parts hereinafter described and 1 a made according to my invention, the chain engaging and spool supporting bracket, to-

gether with the clutch to cooperate therewith, being shown in vertical section with thehook innormal outward position,

Fig. 2' is a view similar toa portion of Fig. 1 but with the hook moved to releasing position, v

i Fig. 3 is an end elevation taken along line 3-3 ofFig.1,and V Fig. l is a perspective view 0 end of the bracket and hook. r i

It is to be understood that tube framesof thetype to which my invent'ion relates extend between a pair of travelling transporting chains and arelmoved progressively toward transfer position from which they are lowered to cloth forming position. The-description given herein relates to one end of one of the tube frames. i i 3 p p The carrier bar lOinay be of tubular form having top and bottom horizontal walls 11 and 12, respectively, between whichextend side walls 13. The spool S has, a gudgeon' 14 lower and left screws 17 and l8, respectively,' as

viewed inFig. 1, the screw l7bein'g nearthe vertical part ofthe spool bearing. a j

The chainengaging member 19 has a vertically extending tongue 20 ofise't fromthe part which lies adjacent the spool hanger to pass between the links 21of a transporting chain. The clutch C has a lowerllifting lip 22 and is provided with a supportingjstud 23 and a second stud '24 by means of which Ill) assugge'sted in Fig. 3; As shown in Figs. 1

r "is in the chain, but as the latter reaches transthe clutch may be rotated around the stud 23. The clutch has a vertical wall which comes into action when the tube frame is to be re leased from the chain. The matter thus far described is of common construction and forms no part of my present invention.

In carrying my improvements into effect I form the member 19 with an inwardly extendingarm which is parallel to and lies in engagement with the arm 16. The screw 17 is threaded into said arm 30 and holds the same in position rigidly with respect to the tubular bar. The left end of the arm is bent downwardly to extend across the tubular bar as at 31 and terminates in a horizontal extension 32 through which extends a screw 33. The latter screw may be opposite the screw 18, asin usual practice. From this construction itwill be s-een that each of the members 15 and19 which form the bracket is secured to the tubular bar by two screws.

7 I A hook member 34 has the upper end thereof bent as at '35 to over-lie one of the chain links 21. The lower portionof the hook member has a vertical shank 36- to engage the surface 25 of the clutch, said shank being of substantially the same width as the interior horizontal dimension of the carrier bar 10,

and 2 the hook member has the lower part thereof provided with lower and'upper parallel guide portions 37 and 38, respectively, which are connected together by a vertical wall 39. V The right end of the upper guide 38 is bent downwardly as at 40 and may be secured to the shank 36 as by welding in order to stiffen the hook. V

A compression spring 41 is interposed between the vertical part 31 of the chain engaging member and the wall 39, and serves to push the guides 37 and 38, together with the hook, to the right as viewedin Fig. 1 so as to hold the upperend in chain engaging position. The lower part of the hook which is defined by the parts 37 38, 39 and 40 forms in effect a hollow block rigid with and in this case integral with the hook member.

In operation the'parts are normally in the position shown in Fig. 1 when the tube frame fer position the clutch will move inwardly, or to the left, to engage the hook member and slide the hollow block between the arm 30 and the lower wall 12 of the tube against the action ofthe spring 41. This will carry the hooked end 35 out of vertical alignment with the chain link. so that the subsequent downward movement of the clutch can lower the tube frame without interference. After the row of tufts has been formed the clutch will be raised to a. position where the end 35 will be above the chain links 21, after which the clutch will move away from the tube frame and the spring 41 will urge the hook member outwardly and the hook will engage the tongue 20 to limit movement of the hook and also place the end 35 in supporting relation with respect to the chain.

It will be noted that the lower portion of the hook member as well as both arms of the bracket forming members 15 and 19 are of a width substantially equal to or slightly less than the interior horizontal dimension of the tubular bar and for this reason these members retain their original strength and are not weakened by slots as is the case in constructions heretofore proposed where the slide tubeenters the tubular bar. The arm of the bracket which is secured to the top horizontal wall of the bar, together with the lower wall of the bar may be thought of as a guideway, the vertical walls also defining parts of the guideway in certain aspects of my invention.

From the foregoing it will be seen that l have provided a rigid construction wherein a sliding hook is provided with a guiding surface or block extending between the lower wall of the tubnlarbar on one side and the arms of the spool and chain engagingmembers of the bracket on the other side, this construction permitting the use of a hook and bracket of full width at the lower end thereof ,so as to increase wearing surface and also prevent angular iovement of the hook in a plane transverse of the tubular bar. It will further be seen that although both arms of the bracket members are on one side of the axis of the tubular bar, yet they are each held in position by twoscrews, as is the case with present constructions, and the chain engaging bar is attached to the lower wall of the member 10 so as'to be held substantially as rigid as is the case with known devices.

Having thus described my invention it will be seen that changes and modifications may bem'ade therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is: i

1. In a. tubeframe for an Axniinster loom having a transporting chain, a tubular carrier bar, a spool supporting member extend ing transversely of the axis of the bar and surface of which en ages that wall of the tubular bar opposite the arms to slide therealong, that part of the members which extend into the bar and also said means being substantially as wide as the interior horizontal dimension of the bar.

2. In a tube frame for an Axminster loom having a transporting chain, a tubular carrier bar, a spool supporting member extending transversely of theaxis of the bar and having an arm to extend into and be secured to the upper side of the tubular bar, a chain engaging member also extending transversely of the axis of the bar and having an arm extending into the tubular bar adjacent the first named arm and held rigidly with the carrier bar, a hook member to engage the transporting chain, a block rigid with and forming part of the hook and extending into the tubular bar, said block having. an upper surface to. engage and be guided by the arm of the chain engaging member and having a second surface parallel to the firstsurface which engages the the interior wall of the bar opposite said arms. 7

3. In a tube frame for an Axminster loom having a transporting chain, a tubular carrier bar, a spool supporting member extending transversely of the axis of the bar and having an arm to extend into and be secured to the upper side of the tubular bar, afchain' engaging member also extending transversely of the axis ofthe bar and'having an arm extending into the tubular bar adjacent, the first named arm and held rigidly with the carrier bar, a hook member to engage the transporting chain and movable relatively thereto to engage andbecome disengaged from the chain, said hook being formed of a piece of sheet metal the lower end ofwhich is bent to have parallel spaced guide surfaces which project into the tubular bar, one of said guide surfaces engaging one ofthe arms extending into the bar and the opposite gulde surface engaging thatinterior surface of the bar which is opposite said arms.

4. In a tube frame for an Axminster loom having a transporting chain, a tubular carrier bar, a spool supporting member extending transversely of the axis of the bar and having an amn to extend intoand be secured to the upper side of the tubular'bar, a chain engaging member also extendingtransversely of the axis of the bar and having an arm extending into the tubular bar adJacent the first named arm and held rigidly with the carrier bar, a hook member to engage the transporting chain, said hook being formed of a. piece of sheet metal which has the lower end thereof bent to form a substantlally hollow block extending into the tubular'bar,

said block being of substantially the same 7 width as the interior horizontal dimension of the tubular bar and sliding between and guided by one of the armsand that surface of the tubular bar oppositethe arms.

I 5. Ina tube-frame for an Axminster loom having a. transporting chain, a tubular bar having opposite walls, a chain engaging and spool supporting bracket having portions extending transversely of the bar and having a bar engaging portion extending into the latter and jsecured'to one of said walls, a rigid hook formed of sheet metal having a portion to engage the chain and having another portion formed with parallel parts to extend into the bar, oneof said parts to engage the other of said walls of the tubular bar and to be guided thereby, and the other part of said hook sliding along the said bar engaging portion of the bracket to be guided thereby, the portion of the bracket and hook which extend within the tubular bar being of substantially the same width asthe horizontal dimension of said bar. a .7 v

6. In a tube framefor an Axminster loom having a transporting chain, a tubular bar having vertical and horizontal walls, a spool supporting member extending into the .bar and attached to the upper horizontal wall of the bar, a chain engaging member having an arm extending into the bar and held. to the upper wall of the bar, said arm having the inner end thereof bent downwardly at a point chain and having a portion to slide along and be guided by that portion ofthe lower wall of the bar between the bent end of the arm and the adjacent end of the bar and engaging also said arm to slide along and be guided thereby.

' 7. In a tube frame for an Axminster loom having a transporting chain, a tubular bar having vertical and horizontal walls, a spool supporting member extending into .the' bar and attached to the upper horizontal wall of the bar, a chain engaging member having an arm'extendin'g into the bar and held tothe upper wall of the bar, said arm having the inner end thereof bent downwardly at a point removed from the end of the tubular bar and secured to the lower horizontal wall ofthe bar, a rigid hook to cooperate with the chain and having a portion to slide along and be guided by that portion of the lower wallof thebar between the bent end of the arm and the adjacent end of the barand engaging also latternormally in operative relation with respect to the chain, a t

8.' In a tube frame foran Axminster loom having 'atransporting chain,-a tubularbar having Vertical 'andhoriz ontal walls, a spool "supporting member extending into the bar and attached to the upper horizontal wall of the bar, a chain engaging member having an arm extending into the barand held to the upper wall of the bar, said arm having the-inner end thereof bent downwardly at a -point removedifromthe end ofthe tubular bar and hook to cooperate with thechain and movable secured to the lower horizontal wall of the bar, and a rigid hook to cooperate with the chain and having a portion to slide along the lower horizontal wall of-the bar and also along the upper part ofthe arm of the chain engaging member, said p'artof the hook being substantially the same width as the distance between the interior vertical walls and engaging and being guided by the latter.

9. In a tube frame for an Axmi-nster loom operating with a transporting chain, a tubular bar having spaced vertical and spaced horizontal walls, a chain engaging bracket having an arm to extend into the bar and engage the upper horizontal wall at a point adJacent the end of the bar, said arm extend ingdownwardly across the interior of the bar :at a point removed from the end of the bar and engaging and being secured to the lower horizontal wall, saidarm and part which extends across the interior of the bar together *with the lower horizontal wall and the verlar bar having spaced horizontal walls, a

chain engaging bracket having an arm to extendinto the bar and engage the upper horizontal wall adjacent the end of the bar and engage the lower horizontal wall at a point removed from the adjacent end of the bar, said arm together with that part of the lower wall intermediatethe adjacent end of the bar and the part of the arm which engages the lower horizontal wall defining a guideway, and a rigid hook having a guiding portion to engage and slide along the arm and also the lower horizontal wall.

11. In a tube frame for an Axminster loom operating'with a transporting chain, a tubular bar having spaced vertical walls and spaced horizontal walls, a chain engaging bracket having an arm to extend into the bar and engage the upper horizontal wall adjacent the end'of the bar and engage the lower horizontal wall at a point removed from the adjacent end of the bar, said arm together with that part of the lower wall intermediate the adjacent end of the bar and the part of the arm which engages the lower-horizontal wall defining a Iguideway, and a rigid hook having a guiding portion to engage and slide along the arm and also the vertical and lower horizontal walls.

- 12. In a tube frame for an Axminsterloom having a transporting chain, a tubular bar,

a spool'supporting and chain engaging bracket having a horizontal arm extending into the tubular bar and secured thereto, and a relatively thereto to cause the hook to engage and become disengaged from the chain and havingrigidtherewith spaced surfaces which extend into the tubular bar, one surface having sliding, and guiding relation with respect to said arm, and the other surface sliding along that side of the tubular bar which is opposite the arm.

.13. In a tube frame for an-Axminster loom having a transporting chain, a tubular bar other of said surfaces of the tubular bar and said arm. r

14. In a tube frame for an Axminster loom having atransporting chain, a tubular bar having opposite walls, achain engaging and spool supporting bracket having portions extending transversely of-th'e barand having another portion extending into the bar and secured to one of said walls, and arhook to engage -ytl1e chain and movable relatively thereto to cause the hook to engage and become disengaged from the chain and having a portion extending into the tubular bar and slidable alongandguided by the other of said walls of the bar and said other portion.

15. Ina tube frame for an Axminster loom havinga transporting chain a'tubular bar having opposite walls, a chain engaging and spool supporting bracket having portions extending transversely of the-bar and having an arm extending into the bar and secu'red to one of said walls, and a rigid hook to engage the chain and movable relatively thereto to cause the hook' to engage and become disengaged from the chain and having a portion extending into the tubular'bar and slidable along and guided by the other of said walls of'the bar and said arm, said portion being formed as a block rigid with the hook. 16. In a tube frame for an Axminster loom having a transporting chain, a tubular bar having spaced vertical walls and'spaced horizontal walls, spool supporting and chain engaging bracket having an arm'which exble to cause the hook to engage and also be disengaged from the chain and having a part to extend. into the bar and engaging the other three walls of the 'latter'and also'said arm, said parts sliding along thebar and arm and being guided thereby, 1 J I 17. In a tube frame for an Axminster'loom having a transporting chain, a tubular bar having spaced horizontal walls and spaced vertical walls, a spool'supporting and'chain engaging bracket having an arm to extend into the bar and be secured to one wall thereof, the other three walls together with said arm defining a guideway, and a rigid hook movable to cause the hook to engage and also be disengaged from the chain and having a part to extend into said guideway and engage the walls and arm defining said guideway to be slidable therealong and guided thereby.

18. In a tube frame for an Axminster loom operating with a transporting chain, a tubular bar having spaced vertical and spaced horizontal walls, a chain engaging bracket having an arm to extend into the bar and be secured to the upper horizontal wall thereof, said arm together with the other horizontal wall and the vertical walls defining a guideway, and a chain engaging rigid hook movable to cause the hook to engage and also be disengaged from the chain and having a part to extend into said guideway and slide along and be guided by said arm and the vertical walls and said lower horizontal wall.-

In testimony whereof I have hereunto affixed my signature.

WALTER H. WAKEFIELD. 

